Luggage carrier lock

The utility model relates to a luggage carrier lock. The luggage carrier lock comprises a lock body foundation, a lock hook foundation, and a ratchet wheel, a pawl, and a lock core fork which can be arranged on the lock body foundation in a rotatable way; the lock body foundation is provided with a carrier cover; a resetting tension spring A which is used for resetting the ratchet wheel is arranged between the ratchet wheel and the pawl; the lock hook foundation is provided with a lock hook, and an unlocking button; the unlocking button is arranged on the lock hook foundation in a rotatable way; a resetting tension spring B is arranged between the unlocking button and the lock hook foundation; and a buffering outer sleeve is sleeved on the ratchet wheel. By adopting the technical scheme, the utility model provides the luggage carrier lock; and in the running process of a vehicle, the collision among the ratchet wheel, the lock body foundation and the pawl which is caused by shaking of a vehicle body can be av